title: Secondary amenorrhea.
mesh_terms: D000293:Adolescent; D000568:Amenorrhea / Q000097:blood / Q000175:diagnosis / Q000209:etiology / Q000628:therapy; D003276:Contraceptives, Oral / Q000627:therapeutic use; D005260:Female; D005640:Follicle Stimulating Hormone / Q000097:blood; D006628:Hirsutism / Q000209:etiology; D006801:Humans; D007986:Luteinizing Hormone / Q000097:blood; D011388:Prolactin / Q000097:blood
chemical_list: D003276:Contraceptives, Oral; D011388:Prolactin; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone